Lauren -- who now lives with Ben in Denver -- played catch with her guy to warm him up before the big pitch. When they weren't playing ball, the two were seen packing on the PDA while on the field in their matching Rockies jerseys.

A lot has happened in the last few months since Ben proposed to Lauren on The Bachelor. The two are now filming their own reality show, Ben and Lauren: Happily Ever After?, and are busy planning their wedding.

"We don't have a date yet, but we have kind of started the initial phases," Lauren revealed to ET. "We both kind of talked more about maybe a winter wedding … Hopefully cameras will catch it, and I think that’s something that’s really cool, because I know nothing about wedding planning. I wish I could've watched someone else plan! So, hopefully you'll get to see that on the show. … I would say definitely, but I don’t want to make any promises!"